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Official data from INPI

PROCESSO PARA A PREPARAÇÃO DE UMA POLITRIAZINA

ConcedidaInvention Patent

Application data

Number

PI8407282

Type

Invention Patent

Filing

10/10/1984

Publication

01/21/1986

Progress at the INPI

  1. Filing10/10/84
  2. Publication01/21/86
  3. Examination10/06/87
  4. Allowance01/10/89
  5. Grant09/26/89
  6. Expired07/08/08

The letters patent expired on 07/08/2008: the term of protection has ended. The technology is in the public domain and may be freely used in Brazil.

Talk to a specialist

Latest action published by the INPI: 09/26/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

The Dow Chemical Company

US

See this company's full portfolio

Inventors

D. D. (pessoa física)

US

E. W. (pessoa física)

US

Technical data

IPC Classification

Priority claims

US

580.406 · 02/15/1984

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

09/26/1989

RPI 988

Notificação para pagamento de retribuição

#13.1

05/30/1989

RPI 971

Deferimento

#9.1

01/10/1989

RPI 951

Exigência - art. 36 da LPI

#6.1

06/14/1988

RPI 921

Solicitação de exame técnico

#4.1

10/06/1987

RPI 885

Notificação de entrada na fase nacional - PCT

#1.3

01/21/1986

RPI 796

Carta-patente expirada

#21.1

Patente extinta em 10/10/99

07/08/2008

RPI 1957

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